42144802 has 48 divisors (see below), whose sum is σ = 79892568. Its totient is φ = 16558080.

The previous prime is 42144797. The next prime is 42144803. The reversal of 42144802 is 20844124.

It can be written as a sum of positive squares in 4 ways, for example, as 19018321 + 23126481 = 4361^2 + 4809^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67998 + ... + 68614.

Almost surely, 2^42144802 is an apocalyptic number.

42144802 is a deficient number, since it is larger than the sum of its proper divisors (37747766).

42144802 is a wasteful number, since it uses less digits than its factorization.

42144802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 42144802 is about 6491.9028027228. The cubic root of 42144802 is about 348.0016789896.

Adding to 42144802 its reverse (20844124), we get a palindrome (62988926).

The spelling of 42144802 in words is "forty-two million, one hundred forty-four thousand, eight hundred two".